Patents by Inventor Dal Ho Kim
Dal Ho Kim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240298464Abstract: A display device includes: a substrate; a display element on the substrate; a capping layer on the display element; and a thin film encapsulation layer on the capping layer, wherein the capping layer includes: a first capping layer on the display element; a second capping layer on the first capping layer, the second capping layer having a refractive index greater than that of the first capping layer; and a third capping layer on the second capping layer, the third capping layer having a refractive index smaller than that of the second capping layer, wherein the second capping layer has a thickness of 30 nanometers (nm) to 60 nm.Type: ApplicationFiled: May 13, 2024Publication date: September 5, 2024Inventors: Dal Ho KIM, Hee Seong JEONG, Won Ju KWON, Sun Hwa KIM, Hyang Ki SUNG, Na Ri HEO, Sang Min HONG
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Patent number: 11985846Abstract: A display device includes: a substrate; a display element on the substrate; a capping layer on the display element; and a thin film encapsulation layer on the capping layer, wherein the capping layer includes: a first capping layer on the display element; a second capping layer on the first capping layer, the second capping layer having a refractive index greater than that of the first capping layer; and a third capping layer on the second capping layer, the third capping layer having a refractive index smaller than that of the second capping layer, wherein the second capping layer has a thickness of 30 nanometers (nm) to 60 nm.Type: GrantFiled: April 9, 2021Date of Patent: May 14, 2024Assignee: Samsung Display Co., Ltd.Inventors: Dal Ho Kim, Hee Seong Jeong, Won Ju Kwon, Sun Hwa Kim, Hyang Ki Sung, Na Ri Heo, Sang Min Hong
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Patent number: 11380734Abstract: An OLED display including first, second, and third color pixels on a substrate, each including a first electrode, an organic emission layer, a second electrode, and a capping layer, in which the first color pixel emits green light, and each of the second and third color pixels emits a color of light other than green, the organic emission layer of the first color pixel includes first and second emission layers that emit light, the organic emission layer of the second or third color pixel includes a third emission layer that emit light, the second and third emission layers include both a host and a dopant, the first emission layer includes the host, but not any dopants therein, and the second emission layer is disposed on the first electrode, and the first emission layer is disposed on the second emission layer.Type: GrantFiled: September 27, 2020Date of Patent: July 5, 2022Assignee: Samsung Display Co., Ltd.Inventors: Hee Seong Jeong, Won Ju Kwon, Dal Ho Kim, Gi-Na Yoo, Dong Jin Lee
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Publication number: 20210359274Abstract: A display device includes: a substrate; a display element on the substrate; a capping layer on the display element; and a thin film encapsulation layer on the capping layer, wherein the capping layer includes: a first capping layer on the display element; a second capping layer on the first capping layer, the second capping layer having a refractive index greater than that of the first capping layer; and a third capping layer on the second capping layer, the third capping layer having a refractive index smaller than that of the second capping layer, wherein the second capping layer has a thickness of 30 nanometers (nm) to 60 nm.Type: ApplicationFiled: April 9, 2021Publication date: November 18, 2021Inventors: Dal Ho KIM, Hee Seong JEONG, Won Ju KWON, Sun Hwa KIM, Hyang Ki SUNG, Na Ri HEO, Sang Min HONG
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Patent number: 10998515Abstract: The present invention provides a solar cell and a method for manufacturing the same, the solar cell including a first electrode formed on a substrate, a nanocrystal layer including a plurality of nanocrystals formed on the first electrode so as to contact the first electrode, a hole transport layer formed on the first electrode so as to cover the plurality of nanocrystals, a photoactive layer formed on the hole transport layer, and a second electrode formed on the photoactive layer.Type: GrantFiled: October 10, 2014Date of Patent: May 4, 2021Inventors: Jea Gun Park, Tea Hun Shim, Dal Ho Kim, Ji Heon Kim, Jae Woo Shin, Joo Hyoung Park
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Publication number: 20210013273Abstract: An OLED display including first, second, and third color pixels on a substrate, each including a first electrode, an organic emission layer, a second electrode, and a capping layer, in which the first color pixel emits green light, and each of the second and third color pixels emits a color of light other than green, the organic emission layer of the first color pixel includes first and second emission layers that emit light, the organic emission layer of the second or third color pixel includes a third emission layer that emit light, the second and third emission layers include both a host and a dopant, the first emission layer includes the host, but not any dopants therein, and the second emission layer is disposed on the first electrode, and the first emission layer is disposed on the second emission layer.Type: ApplicationFiled: September 27, 2020Publication date: January 14, 2021Inventors: Hee Seong JEONG, Won Ju KWON, Dal Ho KIM, Gi-Na YOO, Dong Jin LEE
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Patent number: 10790337Abstract: An OLED display including first, second, and third color pixels each including a first electrode, an organic emission layer, a second electrode, and a capping layer disposed on the disposed on the substrate, in which the first color pixel is configured to emit green light, and the second and third color pixels are each configured to emit a color of light other than green, the organic emission layer of the first color pixel includes a first emission layer and a second emission layer each being configured to emit light, the organic emission layer of the second color pixel or in the third color pixel includes a third emission layer configured to emit light, the second emission layer and the third emission layer include both a host and a dopant, and the first emission layer includes the host, and does not include any dopants therein.Type: GrantFiled: February 27, 2019Date of Patent: September 29, 2020Assignee: Samsung Display Co., Ltd.Inventors: Hee Seong Jeong, Won Ju Kwon, Dal Ho Kim, Gi-Na Yoo, Dong Jin Lee
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Patent number: 10392581Abstract: Provided is a wick for a candle including a carbon material. In addition, provided is a candle including the wick for a candle. By using the wick for a candle according to the present invention, it is possible to provide the candle in which a length of the wick combusted at the time of combustion is not long and ash of the wick does not fall.Type: GrantFiled: July 13, 2017Date of Patent: August 27, 2019Assignee: Samyoung Machinery Co., Ltd.Inventors: Kuk Hyun Han, Yea Won Shim, Dal Ho Kim, Kyung Hwa Ji
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Publication number: 20190198578Abstract: An OLED display including first, second, and third color pixels each including a first electrode, an organic emission layer, a second electrode, and a capping layer disposed on the disposed on the substrate, in which the first color pixel is configured to emit green light, and the second and third color pixels are each configured to emit a color of light other than green, the organic emission layer of the first color pixel includes a first emission layer and a second emission layer each being configured to emit light, the organic emission layer of the second color pixel or in the third color pixel includes a third emission layer configured to emit light, the second emission layer and the third emission layer include both a host and a dopant, and the first emission layer includes the host, and does not include any dopants therein.Type: ApplicationFiled: February 27, 2019Publication date: June 27, 2019Inventors: Hee Seong JEONG, Won Ju KWON, Dal Ho KIM, Gi-Na YOO, Dong Jin LEE
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Patent number: 9893124Abstract: An organic light-emitting display including a substrate having a first pixel area to emit a light of a first color and a second pixel area to emit a light of a second color, a first anode disposed on the first pixel area and a second anode disposed on the second pixel area, a first emitting layer disposed on the first anode and a second emitting layer disposed on the second anode, the first emitting layer including a fluorescent light-emitting material and the second emitting layer including a first phosphorescent light-emitting material, a first buffer layer disposed on the first emitting layer and a second buffer layer disposed on the second emitting layer, the first buffer layer and the second buffer layer being formed of different materials, and a first cathode disposed on the first buffer layer and a second cathode disposed on the second buffer layer.Type: GrantFiled: October 9, 2014Date of Patent: February 13, 2018Assignee: Samsung Display Co., Ltd.Inventors: Ha Jin Song, Dal Ho Kim, Heun Seung Lee
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Publication number: 20180023034Abstract: Provided is a wick for a candle including a carbon material. In addition, provided is a candle including the wick for a candle. By using the wick for a candle according to the present invention, it is possible to provide the candle in which a length of the wick combusted at the time of combustion is not long and ash of the wick does not fall.Type: ApplicationFiled: July 13, 2017Publication date: January 25, 2018Inventors: Kuk Hyun HAN, Yea Won SHIM, Dal Ho KIM, Kyung Hwa JI
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Patent number: 9711569Abstract: An image sensor and an operating method thereof are disclosed. The image sensor includes a first photoelectric conversion portion configured to receive plural lights, except for a light of first wavelength, to generate an electric charge; and a second photoelectric conversion portion configured to receive the light of the first wavelength to generate an electric charge, wherein at least a portion of the first photoelectric conversion portion and the second photoelectric conversion portion is spaced apart from each other in a vertical direction.Type: GrantFiled: May 21, 2013Date of Patent: July 18, 2017Assignee: IUCF-HYUInventors: Jea-Gun Park, Seung-Hyun Song, Ji-Heon Kim, Dal-Ho Kim
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Publication number: 20170098686Abstract: An organic light emitting diode (OLED) display includes a substrate, a first electrode disposed on the substrate, an organic emission layer disposed on the first electrode, a second electrode disposed on the organic emission layer, and a capping layer disposed on the second electrode, in which an optical thickness of the capping layer is in a range of about 1100 ? to about 1400 ?.Type: ApplicationFiled: April 13, 2016Publication date: April 6, 2017Inventors: Hee Seong JEONG, Won Ju KWON, Dal Ho KIM, Gi-Na YOO, Dong Jin LEE
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Publication number: 20160322592Abstract: The present invention provides a solar cell and a method for manufacturing the same, the solar cell including a first electrode formed on a substrate, a nanocrystal layer including a plurality of nanocrystals formed on the first electrode so as to contact the first electrode, a hole transport layer formed on the first electrode so as to cover the plurality of nanocrystals, a photoactive layer formed on the hole transport layer, and a second electrode formed on the photoactive layer.Type: ApplicationFiled: October 10, 2014Publication date: November 3, 2016Inventors: Jea Gun PARK, Tea Hun SHIM, Dal Ho KIM, Ji Heon KIM, Jae Woo SHIN, Joo Hyoung PARK
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Publication number: 20150318509Abstract: An organic light-emitting display including a substrate having a first pixel area to emit a light of a first color and a second pixel area to emit a light of a second color, a first anode disposed on the first pixel area and a second anode disposed on the second pixel area, a first emitting layer disposed on the first anode and a second emitting layer disposed on the second anode, the first emitting layer including a fluorescent light-emitting material and the second emitting layer including a first phosphorescent light-emitting material, a first buffer layer disposed on the first emitting layer and a second buffer layer disposed on the second emitting layer, the first buffer layer and the second buffer layer being formed of different materials, and a first cathode disposed on the first buffer layer and a second cathode disposed on the second buffer layer.Type: ApplicationFiled: October 9, 2014Publication date: November 5, 2015Inventors: Ha Jin SONG, Dal Ho KIM, Heun Seung LEE
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Publication number: 20150171145Abstract: An image sensor and an operating method thereof are disclosed. The image sensor includes a first photoelectric conversion portion configured to receive plural lights, except for a light of first wavelength, to generate an electric charge; and a second photoelectric conversion portion configured to receive the light of the first wavelength to generate an electric charge, wherein at least a portion of the first photoelectric conversion portion and the second photoelectric conversion portion is spaced apart from each other in a vertical direction.Type: ApplicationFiled: May 21, 2013Publication date: June 18, 2015Inventors: Jea-Gun Park, Seung-Hyun Song, Ji-Heon Kim, Dal-Ho Kim
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Patent number: 8441472Abstract: Provided is a method of driving a display panel having a charge trap device and an organic light emitting diode (OLED). The charge trap device includes a nanocrystal layer. The nanocrystal layer includes nanocrystals, which are crystallized and dispersed, and a barrier layer, which buries the nanocrystals. When a program voltage is applied, charges are trapped in the nanocrystals, and the OLED emits light at a predetermined luminance with the application of a read voltage. Data signals are sequentially applied to all pixels of the display panel to express desired grayscales. The pixels of the display panel receive the read voltage and emit light at the same time.Type: GrantFiled: April 24, 2008Date of Patent: May 14, 2013Assignee: Industry-University Corporation Foundation Hanyang UniversityInventors: Jae-Gun Park, Gon-Sub Lee, Su-Hwan Lee, Sung-Ho Seo, Woo-Sik Nam, Dong-Won Shin, Dal-Ho Kim, Hyun-Min Seung, Jong-Dae Lee
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Patent number: 8315080Abstract: Provided are a luminescent device and a method of manufacturing the same. The luminescent device includes a charge trapping layer having bistable conductance and negative differential resistance (NDR) characteristics, and an organic luminescent layer electrically connected to the charge trapping layer. The charge trapping layer comprise a nanocrystal layer intervened in an organic layer, and the nanocrystal layer comprises a plurality of nanocrystals.Type: GrantFiled: April 23, 2008Date of Patent: November 20, 2012Assignee: IUCF-HYUInventors: Jea Gun Park, Gon Sub Lee, Su Hwan Lee, Dal Ho Kim, Sung Ho Seo, Woo Sik Nam, Hyun Min Seung, Jong Dae Lee, Dong Won Shin
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Publication number: 20120118366Abstract: Disclosed is a double-sided light-collecting organic solar cell. The double-sided light-collecting organic solar cell comprises: a first light-transmitting electrode; a first photoactive layer disposed on the first light-transmitting electrode; a reflective electrode disposed on the first photoactive layer; a second photoactive layer disposed on the reflective electrode; and a second light-transmitting electrode disposed on the second photoactive layer. According to the present invention, photoactive layers are formed on both sides of a reflective electrode in the middle, and light-transmitting electrodes are formed to enable light to be absorbed at both sides of a cell, to increase the light absorption of the cell and enable the production of a highly efficient organic solar cell.Type: ApplicationFiled: July 7, 2010Publication date: May 17, 2012Applicant: Industry-University Cooperation Foundation Hanyang UniversityInventors: Jea-Gun Park, Su-Hwan Lee, Ji-Heon Kim, Dal-Ho Kim
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Publication number: 20120073639Abstract: The present invention provides a solar cell and manufacturing method thereof. The solar cell according to the present invention comprises: first and second electrodes, at least one of which has light transmitting properties; two or more photoelectric conversion layers positioned between the first and second electrodes; and a transflective conductive layer positioned between the photoelectric conversion layers. Further, tunneling layers are also provided between the photoelectric conversion layers and the transflective conductive layer. The efficiency of the solar cell can be improved, as compared with the prior art, by providing tunneling layers and a transflective conductive layer in this way.Type: ApplicationFiled: March 18, 2010Publication date: March 29, 2012Applicant: IUCF-HYUInventors: Jea Gun Park, Su Hwan Lee, Dal Ho Kim, Tae Hun Shim